Sophia is a realistic humanoid robot developed by Hanson Robotics, activated on February 14, 2016, and designed for research, entertainment, and educational purposes. As the first robot citizen in the world and the UN's innovation champion, she serves as a platform for exploring human-robot interaction, AI ethics, and practical applications in various fields. Sophia is constructed through a combination of AI technologies, showcasing a hybrid of human input and real AI, while her ongoing development reflects aspirations for the future of artificial intelligence.